I just committed a change to allow people to use a custom constructor for a custom baseClass (ie. the baseClass attribute in schema).There's a small chance this change breaks your propel code. If you use a custom baseClass, that custom baseClass does NOT extend from BaseObject and your custom baseClass (and none of its parents) does not have a constructor, you'll likely see an error after your next update and build. You can easily fix the problem by adding an empty public function __construct to your base class or one of its parents.